Spring Boot Testing | Writing JUnit Tests using JUnit and Mockito | Java Techie

This video will explain you How to write Junit test case using Mockito in spring boot
#JavaTechie #mockito #SpringBoot
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[@fikirwalle843]

you save my life, because of this i passed interview

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what question they asked bro?

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Best channel ever... Tomorrow I have interview..Revision of topics

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The only video where i learned this concept properly, amazing

[@anthonyvinay9943]

Simple and Concise. 100% to the point content. Thank you so much for this educational content.

[@divyanshujaiswal6710]

Thanks for proper and complete video for API basic testing.

[@alfzapc]

Hi, if you having this warning: "no test found with test runner junit 5", you need to import: import org.junit.jupiter.api.Test; insted of import org.junit.Test; Btw: Thanks Java Techie

[@shahjadealam4887]

Thank you so much. you made my UT very easy now. very simple and easy way to understand.

[@sharadsingh2856]

Very clear explanation of mockito and junit. Thank you very much.

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The best best best channel 🙏❤really every video awesome, the way he is explaining very easy to understand 🙏🙏thank you so much!!!!!

[@Javatechie]

Thanks Krish ☺️

[@sunithareddy8813]

When I am waching your vedios easy to understand sir 👍Thank you sir

[@jasper5016]

Thanks for covering Mockito. I believe this is Junit 4. Can you please cover more test cases with Junit 5 and with different situations including how to handle exceptions and all?

[@sayanshee6067]

Awesome content, pretty straight forward. Some people are complaining about communication. Don't worry about accent/communication as long as your content is good.👍🏻

[@Javatechie]

Thanks Sayari 😊

[@nikhiljhawar4612]

@@Javatechie Nice and presized content. I just wanted to know when you're getting user with address="Bangalore", then the user returned is having address as "USA". So, could you please help me understand that.

[@ajaydarshanala8051]

@@nikhiljhawar4612 That's a good question. If you see the service method , it has no business logic. as the repository method is mocked here, it really not checking bangalore . It will always give the usa user object, because the method is mocked. In real time, the service method will have business logic to check bangalore, this video helps to understand the concept. @10.34, he used a term "for testing purpose ". Hope this comment helps.

[@mahadevaswamygn4216]

@@Javatechie Thankyou ,what i learn till now thats only from you.very helpfull for me ,

[@qaziiffatjabeen]

Brilliant, precise and to the point video... Thank you Sir...

[@wolfmohit]

No non-sense guy with awesome content!!

[@Javatechie]

Thanks buddy 😊

[@mohammedshalibasha2249]

thank you so much SIR very nice and clear explanation!

[@bhushansonaje]

Very Good Example !! Thanks for all efforts

[@sonuchaurasia7885]

point to point content, this really helpful for us.

[@muhassinmusthafaa2479]

Very good tutorial..very simple..small request.. some words are difficult to undertstand while u explaining so that some points are missing...try to make it clear...rest is very best..U have done a simple and great job..

[@aigulsharip2091]

Thank you very much for your videos. I found them very useful.

[@mahanthagouda2579]

superb sir , good explanation.

[@SurajKumar-qb9jb]

Thank you for the videos. Very helpful. Keep doing the good work. :)

[@tulsi6317]

It's very clear.. thank you bro

[@kirankumarmothukuri8744]

Great Job. easy to understand. I would appreciate if you elaborate more.

[@shweetamane3620]

Its vry clear thank you

[@sanu7611]

When I run whole test class some methods are failing, when I run single test in class then it is passing.why so

[@Javatechie]

Check the exception it will give you hints otherwise if you are unable to find please share your GitHub link .I will check this out

[@sanu7611]

@@Javatechie is there are any methods to clear cache of unit test?exception is no value at json path but it pass individually when I run whole class this exception occurs

[@adammoe605]

Nice Video & explanation! Why the GetUserByAddress method is returning 1 i(searching for Bangalore our mocked DB has USA) ? assertEquals should be (1,0) I am new to this Am I missing something Thanks in advance

[@Javatechie]

Request you to revise video once again .I could answer your question but u want you to understand it 🤫

[@adammoe605]

@@Javatechie I did watch it more than once this a new concept to me & wasn't sure why you are returning 1 if you are searching for Banglore which doesn't exist in your DB returned data

[@YoursPravat]

Thanks Basant Bhai . You Rock.........................

[@ganeshparida3794]

Awesome your effort please keep continue brother.

[@vanajan5622]

Thank you so much for the useful content

[@flacodoom]

Thanks for sharing this info.

[@richarddanladi9802]

Very helpful, Thank you for this useful content

[@01cybrain]

Superb explanation Sir. Many thanks 👍

[@shubhamnayak668]

Very nicley explained Thanks

[@veenatiwari8621]

sir , Wanted to say , i watched your most of the video , and i cleared my interview for onsite , thanks to you by heart , really like your way of expressing the topics , thanks a lot sir , your videos helped me alot, feeling like you as god messenger to help me , you are from West bengal or south ?

[@Javatechie]

Hi Veena i am so glad to know your achievement Keep learning 😃

[@veenatiwari8621]

@@Javatechie yes sir , now also learning from your videos and implementing the thing in my new project , Thanks a lot sir

[@purnimakumari7735]

Thanks for sharing the knowledge. Please share how to test put method also.

[@percymoganedi4959]

You always make things easier for me to understand. If I may ask do you have full completed course and other full courses that are related to spring framework

[@Javatechie]

Thank you , If you checkout my playlist all the content you can get

[@satyajitm93]

You wrote addrsss as "Bangalore". And in mock data there were no user with address Bangalore. Ideally it should fail because in asertEquals you wrote return value as 1.

[@Javatechie]

Hi satyajit , Mention duration please didn't remember the syntax

[@satyajitm93]

@@Javatechie 11:02 . Please check

[@amanjain396]

same doubt

[@kishanlal676]

Yeah, I don't know how the test gets passed! It should return 0 as he didn't have any user with Bangalore as an address.

[@Javatechie]

@@kishanlal676 & @Aman Jain no this is what mockito does , why you are expecting failure here if you observe when(dao.findUserByAddress(any)).thenReturn(Any user object) so irrespective of any address value i will get that user object which i mention in thenReturn , what's confusing you here

[@jarnailpanchal980]

Thanks Sir! I also want to clarify test case for exception handling, So please upload a video for that as well...... Thank you so much sir.

[@raisevoice1692]

Great job brother👍👍👍

[@pranavmahajan4190]

Your videos are super helpful. Why dont you cover these videos in Hindi? This way you will explain it better and would be easy to grasp.

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It's about reachability. People not knowing Hindi will miss this valuable content

[@Telugu_Isleexplorer]

Nice and simple video

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Your videos r very useful sir....

[@jax40001]

So helpful. I suggest your video to many of my colleagues

[@Javatechie]

Thanks buddy 😊

[@SayujyaShibin]

good vidoe..very helpful

[@srisureshshetty]

Thanks for the tutorial.

[@sonofgod00]

great sir

[@winmust2665]

bhai bhala video heichi .......

[@mugeeshhusain4498]

good video

[@niveshduppalapudi6885]

clean explaination

[@sanjaykantheti4002]

Very clear explanation

[@chinnapareddy8006]

Thank you bro. It's really helpful and can you provide the depth knowledge for same like exception mocking part and if we have more parameters in method how we can handle.

[@Javatechie]

I will do that

[@羽渡尘-c2r]

nice video!

[@solankijigar11]

Thank you very much, sir. Great explanation. :)

[@alfredabate3176]

Awesome man. Thanks

[@palaipankaj]

Easily understood

[@ranvijaysingh4720]

very helpful sir thank u for this video...

[@RaviVerma-bg6ul]

Fantastic brother. Realy helpful

[@sqb8980]

wonderful

[@parthdubey1673]

You have good concepts. Just work on communication. keep it up !

[@musicworld3498]

Thank you for useful content...

[@soccerclub4417]

nice

[@VenuGopal-hg1hm]

Sir First of all I would like to appreciate your work it's really helpfull for the beginers. I am having one doubt :- @Test public void getUserbyAddressTest() { String address = "Bangalore"; when(repository.findByAddress(address)) .thenReturn(Stream.of(new User(376, "Danile", 31, "USA")).collect(Collectors.toList())); assertEquals(1, service.getUserbyAddress(address).size()); } Here you are using address as Bagolore , But in the new User address as Danile , so since when we call service.getUserbyAddress(address).size() this you told that it won't touch db that's ok But that address is not matching naa so why it gives size as 1 , does this actually taking care of Banglore if yes please clarify it OR my thinking is wrong w.r.t to this topic Thank you SIR and Love u for your lectures

[@Javatechie]

I commented on this please checkout once . when (repository.findByAddress(any)).then return(User object); So here it doesn't matter what address I gave , anything I can give it will return me the object which I mentioned in thenReturn method

[@ankittiwary3712]

your videos are very helpfull u r awesome

[@vijayr6540]

Nice explanation sir , thank you

[@funcoding1797]

tnx a lot bro...

[@dktailor123]

Again awesome content Thanks Basant Bro

[@kevinnani5979]

Very well explained I have one doubt like if user id is checking whether he is existing or not then how this dummy data will works?

[@azevedoedison]

Hi, very nice your video. In the example you used a list in FindALL. How would you test if you were a PAGE type? I can't find an easy test example.

[@Javatechie]

Not sure need to check

[@Samiatrix]

Any idea like how can we test update method by Mockito

[@Javatechie]

Please checkout my reactive programming integration test and do follow same

[@thrinathsf1280]

Good explanation. I have one query, you explained unit testing from service to repository flow. What about end to end unit testing with mockito i.e Controller->Service->Repository ?

[@Javatechie]

Already I. Had one video to write test case for controller using mock MVC . It will be more difficult to show test case for all layer in single video.thats why I splited it as separate video.

[@thrinathsf1280]

@@Javatechie ok thanks for the reply. is it possible to write unit tests from end to end using mockito ?

[@Javatechie]

Yes for all layer we can write like controller,service and repository I already uploaded 3 videos using mockito please have a look

[@saktiranjanbehera7010]

Thanks Bhai

[@2RAJ21]

Thank you

[@umaparvathi606]

Hi nice sir

[@shivakamlikar2144]

Wow awsome explanation.... Bro

[@gotocoding]

Thank you for your nice video

[@ch.chandrasekharreddy5543]

thank u sir

[@tanacing347]

Thanks!

[@vaishalis]

Hi, thank you for the great video. One question - You did not add when(repo.delete).thenReturn(user). Is it not needed in delete case to make sure actual delete method is not called?

[@faizkazi8015]

Hello Sir, Thanks for the session. It really helped just had some doubts. For creating test cases for DAO layer do we mock the methods without hitting db or should perform the db operation and then test?

[@Javatechie]

No you should mock all the db call

[@prayagbhasin9192]

Sir search is not working like you provide anything in adress it will give you same values you passes as parameters in return statement .thenReturn(Stream.of(new Post(values))); It must be like this if the address you provided matches then it will give values otherwise give empty as result but in both case it is giving exact same values

[@lpy4150]

Superb

[@neetajava7061]

useful

[@pratapsingh-le2br]

nice video basant bhii

[@rekhalella8122]

well explained

[@swapnilshrishrimal4520]

Thanks for this highly helpful video. How can we mock test IntegrationFlow in spring boot ? Any pointers to this is highly appreciated. Thanks!

[@Javatechie]

Mockmvc will helps you for integration test

[@tushanemclean]

Let say you have function that returns nothing but u want to mock a service call that is being down with that function how would I do that?

[@Javatechie]

You need to go for PowerMockito

[@anilmaurya55]

excellent, thanks

[@ohhhgggeeezzz]

Thanks... but what exactly are we testing here? Because essentially you are mocking the result of the repository. All of your tests are always going to come out true....

[@Javatechie]

Here the concern is reduced trip to our database for testing , that's why we are moking repository. I debugged in code and proofed it please have a look once again. This is why people are using mockito

[@codingispassion6376]

Sir do you have any video on spring security? Can you please tell me about this? I am a beginner and i recently made a REST-API of payment wallet app using spring boot with jpa and now after watching this video I'll add mokito in it as well, it will be wonderful if you give me some idea about spring security so that I can add this too in my project.

[@Javatechie]

Please check out the below complete video on spring security kzbin.info/www/bejne/a5uno3V6ab5kg6s

[@codingispassion6376]

@@Javatechie Thank you so much sir

[@Boebloegn]

insted of repository call if we need to call another service then also we need to use mock object??????

[@Javatechie]

Yes

[@yashpatel-qg3ic]

can you add the update method also. what will the test case of update. Thanks in advanced.

[@Javatechie]

Same after update field assert that

[@sreevallisarva4232]

This was such a good lecture but the screen is not clear

[@Javatechie]

Please increase resolution mode while playing video I uploaded 1080 HD video it depends on your internet bandwidth

[@sreevallisarva4232]

@@Javatechie thank you so much sir🙂

[@ranjitkumargouda8970]

Hi your tutorials are very good. Can you please make a tutorial on TestRule and TestRule Chaining

[@Javatechie]

Hi Ranjit , didn't get you Test rule in the sense ?

[@abhinavpandey3356]

In this did the delete method why we are calling service.deleteuser directly ? I guess we have to use when(service.delete()).then kind of syntax?

[@Javatechie]

Here we are mocking the repository layer not the service layer buddy .

[@abhinavpandey3356]

@@Javatechie bro can u tell why we are deleting user which is not created in db?is it for verifying that whether repo is called or not?

[@Javatechie]

No it's just to check whether my delete method is working or not in service. It won't call your repo it will simply bypass dao call that is what the purpose of mockito right

[@anshumaniax]

why are we using @autowired instead of mock? It will call the real method isn't it?

[@Javatechie]

No it won't call cause service is mocked right

[@ankittiwary3712]

can u please upload a video on payment integeration api like razorpay or instamojo with spring

[@shivakamlikar2144]

Please please..... Please.... Upload more videos about junit with mockito

[@chandramanigupta6997]

Very helpful bro

[@Hacks00145]

Hey thanks easy to understand, but this is only the service classes, how do we do for overall project? Ex controllers, repos etc !!

[@Javatechie]

For controller you need to use mockMVC already I uploaded that video

[@Javatechie]

kzbin.info/www/bejne/nH-bh3Sajst9eJo

[@Hacks00145]

@@Javatechie thank you 😀